Tenon ing-machine



(Model.)

J. SHETLER.

Y l TBNONING MACHINE. 10.260,331. l Patented'June'zv, 1882.

PErERs. mmmmgnpmr sq n n UNITED lSTATES' PATENT Gamen.

JEREMIAEI SHETLER, OF TAYLORVILLE, ILLINOIS.

TENONlNG-MACHINE.

SPECIFICATION forming part of Letters Patent No. 260,331, dated June 27, 1852. l Application filed April22,188a2. (Model.) v

To all whom it may concern:

Be it known that I, JEREMIAH SHETLER, a citizen of the 'United States, residing at Taylorville, in the county of Christian and State of Illinois, have invented certain new and useful Improvements in Tenoning-Machines; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters or figures of reference marked thereon, which form a part of this specification.

This invention relates to improvements in machines for forming tenons on spokes or other articles whereon'it is desired to form a round tenon. .y

It consists in the peculiar construction of the face-plate in connection with the tool-posts, the

construction of the bracket tool-posts, thc

manner in which these posts are adjustablysecured to the face-plate, and the mode of clamping the tools to their respective posts, all of which will be hereinafter fully described, and pointed out in the claims.

In the drawings, Figure l is a front view, and Fig. 3 is a side view, of a tenoning-machine constructedV according to my invention. Fig. 2 is a detail view of the face-plate. Figs. 4 and 5 show in detail the bracket tool-posts, tools, and clamps, all of which will be hereinaf ter described.

a is the face-plate. Through it are cut the straight slots a.' a6 a a6, parallel one with the other, and the two pairs a2 a2 of slots curved in the arc of a circle, the slots a3 a* of each pairbein g nearly concentric one with the other, as shown. v

af is a central opening through the faceplate.

b o are the tool-posts. I employ two of each' kind, and the description of one of each kind will answer for both. The post b is composed of the base-bar b', the top bar b2, and the connecting-bar b3. It is secured to the face-plate by the bolt b4, passed through slot a' in the face-plate, and it can be secured at any position along thisA slot desired. From the lower side of bar b', near its outer end, I project the pin or guide-bolt b5, which moves in the slot a", which braces the tool and prevents its turning on the bolt b4, as -would be the case were this brace not provided.

bf is a rib or flange projected upwardly from the edge of the top bar b2. This ange is ot height equal to the thickness of the tool o, placed thereagainst and in rear of saine in the operation of the device. The inner portion, o7, of the top piece b2 is cnt away, as shown, to furnish clearance for the tool.

d is the clamp, the loop d of which is adapted to be passed over the top piece b2 and tool e, hereinafter described, and by turning setscrew d2 up against under side of bar b2 the tool is secured firmly to post. The tool e is formed pointed, and its under side is beveled to form the cutting-edge, as shown.

The post c is composed of the base-bar c', top bar c2, and connecting-bar of. It is connected to face-plate by bolt o4, passed through slot a3, and it is provided with pin o5, adapted to rest in groove a4. The bolt c4 and pin o5 may be set in any suitable position in the grooves,

and the post and tool may be thus adjusted tov or away from the Work and at any angle to the cutting-line desired, which angle varies with the condition ofthe working-tool, the material worked on, and the speed of revolution, as is well understood. The forward side of bar o2 and portion of upper end of bar o3 are out away,

as shown, forming the shoulder o, against which rests the tool f, hereinafter described. This shoulder, it will be seen, is arranged below the under side of bar o". The tool is made with the shank f as wide as the bar o2 is thick, while near its cutting endf2 it is widened out equal to distance from shoulder c6 to top of-bar o2. The tool is secured to the bar c2 by clamp g, composed of loop made of proper size to fit over bar c2 and shank f of tool, and set-screw passed through side of loop. and arranged to bear against side of bar o2, opposite the side on which tool is placed.

h is an adjustable stop, having a threaded shank adapted to be screwed into the opening a5, and it may be held at any point desired by screw h', passed through sleeve ot'A face-plate. On the faceplate IA cut circular lines or thin grooves concentric with the face-plate. These lines may be graduated, and the tools may then be readily set to cut a tenen of any desired diameter.

In the operation of my device the adjustable stop h is set at proper distance to govern the length of the tenon, and the tools are set at proper point to cnt tenon ot' proper diameter. Then as motion is given the device and the spoke is pressed in the tenon will be formed, the tools f forming the sides of same, while the tool e forms the shoulder at juncture of tenen and spoke, as will be readily understood on reference to the drawings.

The slots a* t6-may be cut all the way through the face-plate, where so desired, or may be only grooves formed part way through the same.

It will be understood my device may be used with power crank or brace, as is most convenient to the operator.

Having thus described my invention, what .I claim, and desire to secure by Letters Patent, 1S

1. The combination, with the face-plate a, having concentric lines t' and slots a a6 a3 a, of the bracket tool-posts b c, provided with bolts b4 c4 and pins b5 c5, and-adapted to carry the tools cf, substantially as set forth.

2. In a tcnoning-machine, the tool-post b, secured to the face-plate by bolt b4 and pin b5, and having its top bar b2 provided with rib or ange b, projected upwardly-therefrom, and its forward portion, b", cnt, away, as shown, and adapted to carry the shoulder-forming tool e, substantially as described.

3. The bracket tool-post c, secured to the faceplate by bolt c4 and pin c5, and having the forward side of its top bar c2 and edge of bar c3 cut away to form the shoulder c, against which rests the side planing tool f, clamped to bar c2, substantially as described.

In testimony w'hereofI alix my signature,in presence of two witnesses, on this 24th day of February, 1882.

J EREMIAH S HETLER.

Witnesses ADAM Rm'scHER, J AMES BROOKS. 

